1. Power-Optimized Digitally Controlled Oscillator in 28-nm CMOS for Low-Power FMCW Radars
- Author
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Christian Enz, Erwan Le Roux, Francesco Chicco, Sammy Cerida Rengifo, and F. Pengg
- Subjects
layout ,low-power ,noise ,Materials science ,oscillators ,capacitors ,inductors ,capacitance ,Noise (electronics) ,law.invention ,remote sensing ,frequency-modulated continuous wave (fmcw) ,lc oscillator ,tuning ,law ,Phase noise ,Digitally controlled oscillator ,Electrical and Electronic Engineering ,low-voltage ,Electronic oscillator ,business.industry ,Electrical engineering ,dBc ,digitally controlled oscillator (dco) ,Condensed Matter Physics ,Capacitor ,wide range ,CMOS ,millimeter-wave (mm-wave) ,business ,Low voltage ,radar - Abstract
This work presents the design of a 24-GHz digitally controlled oscillator (DCO) in an advanced 28-nm bulk CMOS technology for short-range frequency-modulated continuous-wave radar system-on-chip for mobile and Internet-of-Things devices. The power minimization is therefore the primary focus. The oscillator consumes a record low power of 1.2 mW at a 0.65-V supply voltage. It achieves a very large frequency tuning range (TR) of 5.8 GHz (27%) and a 150 kHz resolution without significantly degrading the phase noise (PN). The proposed design methodology results in a state-of-the-art -193 dBc/Hz FoM(T).
- Published
- 2021
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